CN109059376A - Constant-temperature water supply control method and system for full-variable-frequency heat pump system - Google Patents
Constant-temperature water supply control method and system for full-variable-frequency heat pump system Download PDFInfo
- Publication number
- CN109059376A CN109059376A CN201810917542.3A CN201810917542A CN109059376A CN 109059376 A CN109059376 A CN 109059376A CN 201810917542 A CN201810917542 A CN 201810917542A CN 109059376 A CN109059376 A CN 109059376A
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- Prior art keywords
- frequency
- water supply
- supply control
- heat pump
- pump system
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 88
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000006243 chemical reaction Methods 0.000 claims abstract description 33
- 238000010438 heat treatment Methods 0.000 abstract description 13
- 239000003507 refrigerant Substances 0.000 description 7
- 239000007788 liquid Substances 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H4/00—Fluid heaters characterised by the use of heat pumps
- F24H4/02—Water heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/07—Details of compressors or related parts
- F25B2400/077—Compressor control units, e.g. terminal boxes, mounted on the compressor casing wall containing for example starter, protection switches or connector contacts
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention discloses a constant-temperature water supply control method and a constant-temperature water supply control system for a full frequency conversion heat pump system, wherein the method comprises the following steps: step S1: collecting operation parameters of the set after starting in real time; step S2: judging whether the current temperature is lower than a set target temperature or not; step S3: if the current temperature is lower than the set target temperature, judging whether the frequency of the compressor reaches an upper limit value; step S4: if the compressor frequency does not reach the upper limit value, the compressor frequency is increased, and the process returns to step S2. The constant-temperature water supply control method and the constant-temperature water supply control system of the full frequency conversion heat pump system can provide emergency heating and heat supply.
Description
Technical field
The present invention relates to Teat pump boiler field more particularly to a kind of full frequency conversion heat pump system constant temperature water supply control method and
System.
Background technique
As shown in Figure 1, a kind of heat pump system of the prior art include: compressor, four-way valve, condenser, flake evaporators,
Blower, gas-liquid separator, electric expansion valve and water pump.In heating mode operation, the high-temperature high-pressure refrigerant of compressor discharge
Gas by four-way valve enters condenser and the water to be heated is exchanged heat (so that water is heated), while refrigerant gas
Then condensation throttles by electric expansion valve, becomes the gas-liquid two-phase state of low pressure after decompression, into flake evaporators, inhale
The heat in external environment is received, becomes the refrigerant gas of high temperature and pressure, after gas-liquid separator, returns in compressor, follow
Ring is reciprocal.During this, blower is used to control the speed for the heat that refrigerant gas is absorbed by flake evaporators in external environment
Degree, compressor are used to control the velocity of discharge of high-temperature high-pressure refrigerant gas, and water pump is used to control the velocity of discharge of hot water.
Teat pump boiler often encounters the unstable situation of water temperature in engineer application, such as: heating engineering heats for the first time
In the process, since end pipe network water temperature is low, supply water temperature, which needs to heat, just arrives set temperature for a long time, the unit during heating
Power consumption, but since water temperature is too low, heat cannot be utilized, and lead to energy waste；Hot water engineering, after filling hot water, if when long
Between power off, water tank temperature is down to low water temperature, again heating take a long time (usually in 10h or more), urgent use can not be coped with
Regimen condition.
Summary of the invention
The purpose of the present invention is promptly supply for warm in view of the above-mentioned drawbacks of the prior art, providing one kind and being capable of providing
The full frequency conversion heat pump system constant temperature water supply control method and system of heat.
In the embodiment of the present invention, a kind of full frequency conversion heat pump system constant temperature water supply control method is provided comprising
Step S1: the operating parameter after real-time collecting unit starting；
Step S2: judge whether Current Temperatures are lower than the target temperature of setting；
Step S3: if Current Temperatures judge whether compressor frequency reaches upper limit value lower than the target temperature of setting；
Step S4: if compressor frequency does not reach upper limit value, compressor frequency, and return step S2 are improved.
Further, in step S1, the operating parameter after unit starting include environment temperature, inflow temperature, leaving water temperature,
Water tank temperature, compressor frequency, blower frequency and water pump frequency.
Further, the full frequency conversion heat pump system constant temperature water supply control method further includes
Step S5: if Current Temperatures, not less than the target temperature of setting, unit is run according to conventional control program.
Further, in step S4, compressor frequency was improved into 5Hz in 3 minutes.
Further, the full frequency conversion heat pump system constant temperature water supply control method further includes
Step S6: if compressor frequency reaches upper limit value, judge whether water pump operation frequency reaches lower frequency limit；
Step S7: if water pump operation frequency does not reach lower frequency limit, water pump frequency, and return step S2 are reduced.
Further, in step S7, water pump frequency was reduced into 5Hz in 3 minutes.
Further, the full frequency conversion heat pump system constant temperature water supply control method further includes
Step S8: if water pump operation frequency reaches lower frequency limit, judge whether fan operation frequency reaches upper limiting frequency；
Step S9: if fan operation frequency does not reach upper limiting frequency, blower frequency, and return step S2 are improved.
Further, in step S9, blower frequency was improved into 5Hz in 3 minutes.
Further, the full frequency conversion heat pump system constant temperature water supply control method further includes
Step S10: if fan operation frequency reaches upper limiting frequency, the currently running state of unit is maintained.
Further, the full frequency conversion heat pump system constant temperature water supply control method further includes
Step S11: judge the difference of Current Temperatures and target temperature whether in the control accuracy rating of setting,
If the difference of Current Temperatures and target temperature is not in the control accuracy rating of setting, return step S10, machine is maintained
The currently running state of group: it if the difference of Current Temperatures and target temperature has reached the control accuracy rating of setting, returns
Step S5, unit are run according to conventional control program.
Also a kind of full frequency conversion heat pump system constant temperature water supply control system in the embodiment of the present invention, using above-mentioned when running
Full frequency conversion heat pump system constant temperature water supply control method.
Compared with prior art, full frequency conversion heat pump system constant temperature water supply control system and method for the invention, the present invention
Using full frequency conversion heat pump system, it can improve unit by adjusting compressor, blower and water pump frequency in emergency and go out water temperature
Degree, meets requirement.The invention can reduce the invalid energy consumption that heating engineering heats for the first time, promote energy utilization rate；It can also be fast
Speed improves water tank TNE UPPER SEA TEMPERATURE, urgent quickly to provide hot water, promotes heating engineering energy utilization rate and engineering emergency capability.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the heat pump water system of the prior art；
Fig. 2 is the flow chart of full frequency conversion heat pump system constant temperature water supply control method provided in an embodiment of the present invention.
Specific embodiment
As shown in Figure 1, a kind of full frequency conversion heat pump system constant temperature water supply control method is provided in the embodiment of the present invention,
Including step S1-S11, it is illustrated separately below.
Step S1: the operating parameter after real-time collecting unit starting.
It should be noted that the operating parameter after unit starting includes environment temperature, inflow temperature, leaving water temperature, water tank
Temperature, compressor frequency, blower frequency and water pump frequency.
Step S2: judge whether Current Temperatures are lower than the target temperature of setting.
It should be noted that Current Temperatures are the temperature that acquires for control Unit Commitment, such as: hot water engineering Current Temperatures
It can be current water tank temperature, and floor heating engineering Current Temperatures can be current inflow temperature or leaving water temperature.
Step S3: if Current Temperatures judge whether compressor frequency reaches upper limit value lower than the target temperature of setting.
Step S4: if compressor frequency does not reach upper limit value, improving compressor frequency, and return step S2, into
One step judges whether Current Temperatures are lower than the target temperature of setting.
In step S4, the scheme for improving compressor frequency is that compressor frequency was improved 5Hz in 3 minutes.Pass through raising
Compressor frequency, to control the velocity of discharge of high-temperature high-pressure refrigerant gas, to accelerate the raising of water temperature.
Step S5: if Current Temperatures, not less than the target temperature of setting, unit is run according to conventional control program.
Step S6: if compressor frequency reaches upper limit value, judge whether water pump operation frequency reaches lower frequency limit.
Step S7: if water pump operation frequency does not reach lower frequency limit, reducing water pump frequency, and return step S2,
Further judge whether Current Temperatures are lower than the target temperature of setting.
In step S7, the scheme for reducing water pump frequency is that water pump frequency was reduced 5Hz in 3 minutes.By reducing water pump
Frequency, so that water speed is reduced out, to improve the raised speed of water temperature.
Step S8: if water pump operation frequency reaches lower frequency limit, judge whether fan operation frequency reaches frequency limit
Rate.
Step S9: if fan operation frequency does not reach upper limiting frequency, improving blower frequency, and return step S2,
Further judge whether Current Temperatures are lower than the target temperature of setting.
In step S9, the scheme for improving blower frequency is that blower frequency was improved 5Hz in 3 minutes.By improving blower
Frequency improves the speed for the heat that flake evaporators absorb in external environment, to improve the heating rate of refrigerant, Jin Erti
The heating speed of Gao Shui improves the heating rate of water temperature.
Step S10: if fan operation frequency reaches upper limiting frequency, the currently running state of unit is maintained.
Step S11: judge the difference of Current Temperatures and target temperature whether in the control accuracy rating of setting,
If the difference of Current Temperatures and target temperature is not in the control accuracy rating of setting, return step S10, machine is maintained
The currently running state of group: it if the difference of Current Temperatures and target temperature has reached the control accuracy rating of setting, returns
Step S5, unit are run according to conventional control program.
Further, a kind of full frequency conversion heat pump system constant temperature water supply control system is additionally provided in the embodiment of the present invention,
Using above-mentioned full frequency conversion heat pump system constant temperature water supply control method when operation.
Compared with prior art, full frequency conversion heat pump system constant temperature water supply control system and method for the invention, the present invention
Using full frequency conversion heat pump system, it can improve unit by adjusting compressor, blower and water pump frequency in emergency and go out water temperature
Degree, meets requirement.The invention can reduce the invalid energy consumption that heating engineering heats for the first time, promote energy utilization rate；It can also be fast
Speed improves water tank TNE UPPER SEA TEMPERATURE, urgent quickly to provide hot water, promotes heating engineering energy utilization rate and engineering emergency capability.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (11)
1. a kind of full frequency conversion heat pump system constant temperature water supply control method, which is characterized in that including
Step S1: the operating parameter after real-time collecting unit starting；
Step S2: judge whether Current Temperatures are lower than the target temperature of setting；
Step S3: if Current Temperatures judge whether compressor frequency reaches upper limit value lower than the target temperature of setting；
Step S4: if compressor frequency does not reach upper limit value, compressor frequency, and return step S2 are improved.
2. full frequency conversion heat pump system constant temperature water supply control method as described in claim 1, which is characterized in that in step S1, machine
Operating parameter after group starting includes environment temperature, inflow temperature, leaving water temperature, water tank temperature, compressor frequency, blower frequency
With water pump frequency.
3. full frequency conversion heat pump system constant temperature water supply control method as described in claim 1, which is characterized in that further include
Step S5: if Current Temperatures, not less than the target temperature of setting, unit is run according to conventional control program.
4. full frequency conversion heat pump system constant temperature water supply control method as described in claim 1, which is characterized in that, will in step S4
Compressor frequency improved 5Hz in 3 minutes.
5. full frequency conversion heat pump system constant temperature water supply control method as described in claim 1, which is characterized in that further include
Step S6: if compressor frequency reaches upper limit value, judge whether water pump operation frequency reaches lower frequency limit；
Step S7: if water pump operation frequency does not reach lower frequency limit, water pump frequency, and return step S2 are reduced.
6. full frequency conversion heat pump system constant temperature water supply control method as claimed in claim 5, which is characterized in that
In step S7, water pump frequency was reduced into 5Hz in 3 minutes.
7. full frequency conversion heat pump system constant temperature water supply control method as claimed in claim 5, which is characterized in that further include
Step S8: if water pump operation frequency reaches lower frequency limit, judge whether fan operation frequency reaches upper limiting frequency；
Step S9: if fan operation frequency does not reach upper limiting frequency, blower frequency, and return step S2 are improved.
8. full frequency conversion heat pump system constant temperature water supply control method as claimed in claim 7, which is characterized in that
In step S9, blower frequency was improved into 5Hz in 3 minutes.
9. full frequency conversion heat pump system constant temperature water supply control method as claimed in claim 7, which is characterized in that further include
Step S10: if fan operation frequency reaches upper limiting frequency, the currently running state of unit is maintained.
10. full frequency conversion heat pump system constant temperature water supply control method as claimed in claim 9, which is characterized in that further include
Step S11: judge the difference of Current Temperatures and target temperature whether in the control accuracy rating of setting,
If the difference of Current Temperatures and target temperature is not in the control accuracy rating of setting, return step S10, machine is maintained
The currently running state of group；If the difference of Current Temperatures and target temperature has reached the control accuracy rating of setting, return
Step S5, unit are run according to conventional control program.
11. a kind of full frequency conversion heat pump system constant temperature water supply control system, which is characterized in that using such as claim 1- when it runs
10 described in any item full frequency conversion heat pump system constant temperature water supply control methods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810917542.3A CN109059376A (en) | 2018-08-13 | 2018-08-13 | Constant-temperature water supply control method and system for full-variable-frequency heat pump system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810917542.3A CN109059376A (en) | 2018-08-13 | 2018-08-13 | Constant-temperature water supply control method and system for full-variable-frequency heat pump system |
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| CN109059376A true CN109059376A (en) | 2018-12-21 |
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| CN201810917542.3A Pending CN109059376A (en) | 2018-08-13 | 2018-08-13 | Constant-temperature water supply control method and system for full-variable-frequency heat pump system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110160126A (en) * | 2019-04-18 | 2019-08-23 | 广东智科电子股份有限公司 | Frequency conversion heating multi-connected machine control method, device, equipment and storage medium |
| CN111120284A (en) * | 2019-12-26 | 2020-05-08 | 珠海格力电器股份有限公司 | Heat pump system and water pump control method thereof |
| CN113209915A (en) * | 2020-08-12 | 2021-08-06 | 本合(天津)科技有限公司 | Constant-temperature reaction system for lubricating oil additive production and preparation method thereof |
| CN114294870A (en) * | 2021-12-21 | 2022-04-08 | 珠海格力电器股份有限公司 | Control method, device and equipment of heat pump air conditioning system and storage medium |
| WO2022123626A1 (en) * | 2020-12-07 | 2022-06-16 | 三菱電機株式会社 | Hot water heating system |
| CN114739013A (en) * | 2022-04-26 | 2022-07-12 | 浙江中广电器集团股份有限公司 | Variable frequency control method of heat pump water heater and variable frequency water heater system |
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Application publication date: 20181221 |
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